Improvement in machines for rolling axles



G. K. .DEARBORN.

MACHINES FOR'ROLLING AXLES.

No.178,838. Patented'J'une 20,1876.

N-PETERS, PHOTO-LITHOGRAPHER. WASHINGTON D C STATES PATENT QFFIGE.

GILBERT K. DEARBORN, OF SOMERVILLE, MASSACHUSETTS. I

IMPROVEMENT IN MACHINES FOR ROLLING AXLES.

Specification forming part of Letters Patent No. 178,838, dated J one 20, 1876.; application filed November 9, 1875.

To all whom it may concern:

Be it known that I, GILBERT K. DEARBO RN, ot' Somerville, in the county of Middlesex and State of Massachusetts, have invented a certain new and useful Machine for Rolling Axles, 0t which the followil'ig is a specification:

The nature of my invention consists in combining rollers of a peculiar pattern, in such a manner that the axle to be formed may be inserted longitudinally between them, and be acted upon while in this position. In the process of rolling, the axle being formed revolves on its longitudinal axis, which is parallel to the axes of the rollers which form it,

Figure 1 is afront elevation of my machine. Fig. 2 is a vertical section of the same. Fig. 3 is a cross vertical section of the same. Fig. 4 is a plan, showing the top of the machine.

Let A represent the frame of the machine, in which I hang three rollers, B B E the form of which is shown in Fig. 2 at B and B, said rolls being so formed that the space between them, as'shown in Fig. 2, will agree with the shape required for the axle. These three rolls are hung in housings O G '0 which slide in ways made in the frame A, as shown in Figs. 1 and 3, and are moved toward or away from a common center by the screws E E E each roll having a screw at each end. The screws E E for the upper roll B are operated by the worm K and the gears H H,

Figs. 2 and 4, was to move with uniformity. The sets of screws for operating the rolls B and B may be connected together by chainbelts or by gears, or, in fact, by any suitable mechanical device. The rolls B B B are driven by suitable gears D D, Fig. 2.

To use my invention I proceed as follows:

The iron blank from which I propose to make the axle is heated to the proper temperature, and, the rolls B B B being set properly for beginning work, isinserted between the rolls, as shown at S, Fig. 3, the blank being parallel to the rolls, then, as the rolls revolve, the

iron revolves with them, and is rounded ofl".

shown, with the adjusting-screws E E E the worm K, and the gears H H, all connected so as to operate substantially as described,

and for the purpose set forth.

GILBERT K. DEARBORN.

Witnesses:

WILLIAM EnsoN, H. Evans, Jr. 

